JPH0464837A - Indoor device for air conditioner - Google Patents

Abstract

PURPOSE:To enable an indoor device to be easily installed in a ceiling casing or a floor casing by a method wherein when an air conditioning operation is carried out with the indoor device being in an inverted state with its upper part and lower part upside-down, drain is dropped onto a second drain pan, passes through a drain guide pipe and drops onto a third drain pan and thereafter the drain is discharged out of a room. CONSTITUTION:When a blower 7 is started to operate with an indoor device being installed within a floor casing, indoor air is sucked through a suction port 10 to pass through a heat exchanger 8, thereby the air is cooled or heated, then the air passes within the blower 7 and is blown from a blowing port 11 into a room. Dew adhered to a heat exchanger 8 is dropped into a first drain pan 13 and discharged out of a room by a drain pipe. When the indoor device is installed within a ceiling casing while it is in its reversed state, dew adhered to the heat exchanger 8 is dropped into a second drain pan 14 for a so-called inverse fixing state, passes through a drain guide pipe 17. The dew is further dropped into a third drain pan 15 for a discharging installed state and then is discharged out of a room through a drain pipe fixed to an outer end fitting 15b.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an indoor unit of an air conditioner that is installed in a space such as a roof or basement of a building.

[Prior Art] Fig. 3 is a sectional view of an indoor unit in a conventional air conditioner disclosed in Japanese Utility Model Application Publication No. 60-54023. Board (3)
It is equipped with a housing (5) suspended by a plurality of bolts (4) in the space between the decorative panel (
6) is blocked. There is a blower (7) inside the housing (5).
and a heat exchanger (8) are supported and stored on the housing (5) side, and a gutter-shaped trepan (9) is located below the heat exchanger (8) from the front side to the back side in the figure. A suction port (]0) and an air outlet D (]]) are provided in the housing (5) and the decorative panel (6).

In the above configuration, when the blower (7) is started, the indoor air sucked from the suction port (10) is sucked from the suction port (7a) of the blower (7) and then from the exhaust port (7b) as shown by arrow A in the figure. It is discharged and cooled or warmed by passing through the heat exchanger (8), and then the air outlet (11)
) and blows out into the room as shown by arrow B in the figure.

Dew adhering to the heat exchanger (8) falls into the trench pan (9) and is discharged outside through the drain pipe. During heat exchange using the heat exchanger (8), if the inside and outside of the casing (5) are not insulated, dew condensation will occur on the outer circumferential surface of the casing (5). ) is pasted with a heat insulating material (12) made of glass wool or the like.

[Problems to be Solved by the Invention] Since the indoor unit of a conventional air conditioner is configured as described above, if the indoor unit is operated upside down, drainage cannot be processed, and the top bag and When installing in a ground bag, etc., there were problems such as having to separately install suction and blowout ducts and use these ducts. This invention solves the above problems. To provide an indoor unit of an air conditioner which can be operated upside down as it is and which can be easily installed in either a top bag or a bottom bag.

[Means to solve the problem] In the indoor unit of the air conditioner according to the present invention.

At the bottom of the heat exchanger, it is usually installed at the inner bottom of the housing.
Drain pan, heat exchanger" A second drain pan for condition is installed inverted in the second part, and a third drain pan for condition is installed inverted on the top surface of the casing.
It is connected to the drain pan with a drain guide pipe.

[Function] When the indoor unit of the air conditioner according to the present invention is normally installed and operated, dew adhering to the heat exchanger falls into the first drain pan directly below and is discharged outdoors, and when the indoor unit is moved up and down. During operation in an inverted installation, the drain falls into the second drain pan, passes through the drain guide pipe, falls into the third drain pan, and is then discharged outside.

[Example 1] An example of the present invention will be described below. That is, in Fig. 1, (1) is the casing of the indoor unit, (7) is the interior indoor air circulation blower, and (8) is the interior heat exchanger. At the inner bottom of the body (1), there is a first condition drain pan (13) for normal installation, and on the top of the heat exchanger (8) there is a second condition drain pan (14) for inverted installation. For inverted installation, a third drain pan (] 5) is installed on the inner surface (16) of 1), and (13a) is a base provided at the tip of the first drain pan (13). (1) Projects outward. (14
a) is a cap provided at the inner end of the second drain pan (I4), (15a) and (15b) are caps provided at the inner and outer ends of the third drain pan (15), and the outer end cap (+
, 5b) protrude outside the housing (1).

(17) is a drain guide pipe, each end of which has the above-mentioned cap (
], 4a) and the cap (], 5a).

Further, (10) is an indoor air suction port to the internal heat exchanger (8), which is opened at the lower part of the housing (1). ( ] 1) is an indoor air outlet from the interior blower (7), which is opened in the upper part of the housing (1).

Next, the operation of the blower (7
) is started, indoor air is sucked in from the suction port (10) and cooled or warmed by passing through the heat exchanger (8), as shown by arrow A in the figure.
7) and is blown out from the air outlet (11) into the room as shown by arrow B in the figure.

Dew attached to the heat exchanger (8) is removed from the first drain pan (13).
It falls into the room and is discharged to the outside by a drain pipe (not shown) attached to the base (13a).

Figure 2 is a vertical cross-sectional view of the indoor unit shown in Figure 1 installed upside down in the top bag. It falls into the second drain pan (14) and the drain guide pipe (17
), and the inverted installation is carried out through the third state drain pan (
15) and is discharged to the outside through a drain pipe (not shown) attached to the base (15b) at the outer end.

[Effects of the Invention] Since the indoor unit of the air conditioner according to the present invention is constructed as shown below, it can be installed in a ground bag in the normal installation state shown in FIG. The inverted installation shown in Figure 2 can be installed in a suspended state in a part of the top bag, and in either of these situations, the indoor air outlet will be located closer to the center of the room, so the temperature distribution will be improved. Effects such as improved performance can be obtained.

[Brief explanation of drawings]

1 and 2 are vertical sectional views of an indoor unit of an air conditioner according to the present invention, and FIG. 2 shows the inverted state of FIG. 1. FIG. 3 is a vertical sectional view showing how an indoor unit is installed in a conventional air conditioner. In the figure, (1) is the housing, (7) is the blower, (8) is the heat exchanger, (10) is the suction port, (11) is the outlet, and (I3)
is the first drain pan, (14) is the second drain pan, (15
) is the third drain pan, and (17) is the drain guide pipe.

Claims (1)

[Claims] In an indoor unit of an air conditioner in which the indoor air outlet from the internal blower is opened in the upper part of the casing, and the indoor air inlet to the internal heat exchanger is opened in the lower part of the casing, the lower part of the heat exchanger is A first drain pan for the normal installed state is provided at the inner bottom of the casing, and a second drain pan for the inverted installed state is provided at the top of the heat exchanger. An indoor unit for an air conditioner, characterized in that a third drain pan for an installed state is provided on the inner top surface of the casing.